Announcement (2017-05-07): www.ruby-forum.com is now read-only since I
unfortunately do not have the time to support and maintain the forum any
more. Please see rubyonrails.org/community and ruby-lang.org/en/community
for other Rails- und Ruby-related community platforms.

I installed ferret and it cleaned me out!!!
I do the following:
__________________________
# gem install ferret
Need to update 4 gems from http://gems.rubyforge.org
....
complete
Select which gem to install for your platform (i386-linux)
1. ferret 0.11.4 (ruby)
2. ferret 0.11.4 (mswin32)
3. ferret 0.11.3 (ruby)
4. ferret 0.11.2 (ruby)
5. Skip this gem
6. Cancel installation
> 3
Building native extensions. This could take a while...
ERROR: While executing gem ... (Gem::Installer::ExtensionBuildError)
ERROR: Failed to build gem native extension.
ruby extconf.rb install ferret
can't find header files for ruby.
_________________________________________
Then I try to uninstall and i get the following:
__________________________________________
gem uninstall ferret
ERROR: While executing gem ... (Gem::InstallError)
Unknown gem ferret-> 0
___________________________________________
Then I try to rake my db and i get errors
____________________________________________
$ rake db:migrate
(in /home/drhenner/eggpad)
rake aborted!
no such file to load -- ferret_ext
____________________________________________
I have no idea what i can do to just uninstall ferret from my system. I
would prefer to have it work but at the very least i don't want it to
stop all future work. I installed 0.11.4 first and i got the same
problem. I manually removed all the files and directories in
ruby/gems/1.8/gems/ferret-0.11.4/
it didnt help at all.
This has to be my worst experience with a rubygem EVER. Everything
always runs smooth up until now.
What are the ruby header files by the way???